Kernelopts(multithreaded) returns true for both my P4 hyper thread processor (which is fine) and also my P3 tecra 8100 laptop. huh?

Isn't multithread only supposed to return true if there is hyperthread technology on the chip or the processor was dual core or dual processor.  Why is it returning true on my laptop P3 single processor? 

In order to optimize a large number of datasets I integrated the GlobalSolve command from the OptimizationToolbox
in a for loop. The code (in short form) looks like this:

for i from  1 to 100 do
data(i):= "read data from external file":
Z:= "function to optimize based on data(i)":
with(GlobalOptimization):
infolevel(GlobalOptimization):=4
B:=GlobalSolve(Z, a=0..2, b=0..2, c=0..2, timelimit=6000):
->Solution of optimization is exported to external file
end do:

How do I graph multiple functions on the same plot, and possibly with different colors for each line. Thanks in advance.

How do I graph multiple functions on the same plot, and possibly with different colors for each line. Thanks in advance.

I have some tough maple questions if you guys think you can handle them, let me know, i could use the help but also if you like a challenge, i think you'll get a kick out of the questions.

write me a message and i will send you a link to the questions (i scanned and uploaded the image of the questions on the paper)  just a few questions but tough ones!!!

Any help would be appreciated!!

thanks guys.

Hi all,

While trying to solve the Legendre ODE, my serie (obtain by Frobenius method) was transform by Maple by the following:

 

> y1x(p);

                             /[  1    1   1  ]  [1]   2\
                    hypergeom|[- - p, - + - p], [-], x |
                             \[  2    2   2  ]  [2]    /

where y1x is my serie and p is the degree of the ODE.  But at the screen, the output is:

So my questions are

1.  What the 2 and the 1 around the F means?

2.  Is it normal that this special function is the solution of the Legendre ODE?

(in fact, I test it for different p::posint and it worked)

3.  Can someone help me to have the ratio |a(k+1)/a(k)| so I can do the ratio test for the convergence of that serie.  In fact, any additionnals informations ,other than the helps pages, would be very welcome.

Thanks in advance

Mario

 

 

 

 

 

Is there a way I can plot 5 different functions together?I only require specific sections of the graphs, like between [0,3] for the first, (3,6] for the next, etc?

Thanks!

Hi, I have the following problem: Input: positive integer n, real number y (1) a:=1, b:=1 (2) for i =1 to n do (3) a:= (a*y)/i, (4) b:=b+a (5) end do (6) output: b I am struggling to find the number of assignments in terms of n. I understand for (2), I will need (n-1) assignments. For (3), will I need the sum of (i+1)? Not sure what to do with the rest of it... Any help would be appreciated. thanx. antonio

I am trying to solve the differential equation below using the following code. deq := diff(c(x), x, x) = c(x)*exp(gamma*beta*(1-c(x))/(1+beta*(1-c(x)))) ic := (D(c))(1) = 0, c(0) = lambda dsol := dsolve({deq, ic}, numeric, output=array([0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0]), continuation = lambda)

The question is in the subject. Please help. Thanks

Every now and then someone will post here on Mapleprimes and the code will use an older package such as linalg or stats. Quite often it is clear that the poster is new to Maple. Yet these packages have been superceded with new ones, eg. LinearAlgebra and Statistics.

One obvious question that then arises is: how did this user decide to use the older package?

I just did a google search on

 A RSA with the modulus n = 119 and the exponent e = 7, with the 95-character
alphabet consisting of the printable ASCII characters to encrypt the word “Yes”.
so that Y=58, e=70, s=84. Give your encryption as a list of three numbers.

Then use the same set (that is the modulus n = 119 and the exponent e = 7) to decrypy the list of number  [42,59,4,59,27,59]

Here is my code, what's wrong with it. Please help. Thanks

I would like to compile a Maple procedure to compute a large matrix.  However, I cannot find a way to send it back from the procedure.  Does any feasible way exist?

Thanks!

Hi,

anyone have any extra documentation for the Physics Package? Something more systematic then the example worksheet and docs in the help file perhaps...

The idea is so very good, but I can't use it for a lack of a detailed description of the commands, specially in the Feynmann Diagrams command (I really didn't even get what is the output of this command...).

 

Rafael

My actual problem is more complicated, but how do I get

     subs((x+1)^2 = a, (x+1)^6+2)

to look for transformations of the expression for which I'd like to substitute--

or

    subs((x+1)^2 = a, (x^2+2x+1)^3+2)

 

Perhaps this is just too much to expect.  Maple already blows my mind.  8-)